Wrench.



No. 657,326. Patented Sept. 4, |900. J. E.\WAKEFIELD.

W R E N C H (Application led Aug. 8, 1897.)

(No Model.)

UNITED STATES PATENT OFFICE.

JOHN E. WAKEFIELD, OF WORCESTER, MASSACHUSETTS.

WRENCH.

SPECIFICATIO forming pm of Letters Patent No. 'eer-,326, dated september4, 1900.

Appncati'on sied August s, 1897.

T0 Vtif/ZZ whom it may concern.-

Be it known that I, JOHN E. WAKEEIELD, a citizen of the United States,residing at Worcester, in the county of Worcester and 1 State 0fMassachusetts, have invented a new` and useful Improvement in Wrenches,of which the following is a specification, accompanied by drawingsforming a part of thesleeve being represented as it comes from thedie-press.

Similar letters refer to similar parts in the different figures.

My present invention relates particularly to that class of wrenchesknown as bicyclewrenches, and it has for its object to pro-f duce animproved wrench at a reduced cost and of better quality which can beconveniently carried in the pocket; and it consistsV in the constructionand arrangement of parts,

as hereinafter described, and specifically. pointed out in the annexedclaims.

Referringl to the drawings, A denotes the bar of the wrench, having theupper jaw A'- preferably formed integrally therewith and` ot' the sainethickness as the bar A, and B denotes a sliding sleeve which inclosesthe-` bar A. The sleeve B is drawn from a single piece of sheet-steel ina die-press by means of suitably-shaped dies and has its lower end Bclosed, forming a pocket inclosing the end of the bar A, with its upperend open to receive the bar and the lower jaw. The rear edge B2 of thesleeveis straightand in contact with the rear edge A2 of the bar, andthe front edge B3 of the lower portion of the sleeve is parallel withthe rear edge B2 from the lower end B' to an offset B5, aboutmidway thesleeve, and the front edge B4 of the upper portion of the sleeve ispreferably slightly iaring from the oset B5 to the upper end of thesleeve B6 to afford space in front of the bar to receive the taperingbody portion C of the lower jaw C' between the front edge of Vwith thefront edge A3 of the bar.

Fig. `5 is a perspectiveview of the sleeve from which the wrench-handleis formed, said saisi No. 646,882. dit maar.)

`the sleeve and the front edge A3 of the bar.

The body O of the lower jaw is straight upon its rear edge C2, which isin sliding contact The front edge O3 of the body portion of the lowerjaw is slightly tapered to correspond with the `daring front edge ofvthe sleeve B, acting as `a wedge to crowd the rear edge O2 against Vthe bar A. The body portion O of the lower vjaw is attached to thesleeve B by means of 'rivets D D, which are provided with a small headat one end and are` slightly upset at their opposite ends to firmly holdthem in place and allow them to be readily removed for the purpose ofdetaching the lower jaw from the sleeve. The uppenend of the bod;T

1 portion O of the lower jaw exteudsa short distance above the upperoropen end of the sleeve B and is surmounted by the lower jaw C', saidlower jaw and the body portion O being preferably of the same thicknessas the bar A. The lower end of the body portion C of the lower jaw isprovided with a cylin- `shoulder B7, opposing the shoulder C5 on thelower jaw, thereby holding the nut from longitudinal movement as it isrotated upon the shank O4, causing a longitudinal movement-to beimparted to the bar A for the purpose of opening or closing the spacebetween the parallel faces G G of the upper and lower jaws.

The upper portion ofthe sleeve B constivtutes a bandwhich incloses boththe bar A and the body portion O of the lower jaw, holding the rear edgeO2 in contact with the front edge A3 of the bar and maintaining thelower .jaw in proper relation to the bar A, so that the strain upon thejaws incident to the use of the wrench will be received by the thread ofthe nut and the engaged teeth of the bar and that portion of the sleeveinclosing the bar and body portion of the lower jaw, thereby relievingthe rivets D D,'by which the lower jaw is connected to the sleeve B, the

'rivetssimply serving to hold the lower jaw IOO ' the bar.y By makingthe tubular hand-flesepafrom fallingV ont when the wrench is ,nota in'use. By drawing the sleeve B integrally Vfrom a single piece ofsheet-steel by means of suitably-shaped dies I am able not only toaccurately shape the sleeve, but also to accnrately determine itsinterior dimensions,whi ch,ar,e

govern ed by the-size of the diesemployedgandat the same time securingthe iiaring upper section of the sleeve with a perfectly-smooth'.interior-surface, which incloses a chamber of accurate shape anddimensions toreceive the tapering bodyportionrofthe lower jaw.

The sleeve B Yis long enough to completely-i cover the lower end of thebar A whenthe faces G G 0f the jaws are in contact, and the roundedclosed end B of the sleeve covers the: end ofl thebarandpreventsthe-accessof dirt and presents a round and nisliedendfwhicl'r enablesthe wrench to ,be conveniently carried; in thepocket.

material for the sleeve which can readilybe` dra-wn into shape by meansof'diesfiln ai die*- press', while the lower jaw can bev hardened2A tosecure a dnrablewearing-faceGf.

In Fig.. 'Iha-ve shown the tubularidra-wn sleeve B as formed;` by the`die-press,,said` sleeve forming the handle of t'hewrench and? havingits-lowerend'B closed, with the lower portion of the handle narrowerthan th'eup per portion', the uppera'n'd wider portion be"-4 ing formedby anv oiset B5 on thefrontedges-N of the handle. lThe narrower portionallowsl thehand-le to be conveniently graspedbyfthe 1 fingersv and thewider porrion'provides a;spacef-.

for the insertion offy the lower jaw in frontof rate from thejaw Iain-.able to drawa.,handley which entirely incloses therlowerfendof thekbar from a piece of sheetLste'el byV means' of dies instead ofcasti'ngit,` as heretofred'orr'e,

l thereby making the handleof' wrouglitsteelf instead: of cast meta-l.an di muchjthi'nner and-V l'i-ghter'tha'n possible `with cast metalandalso `omuch-cheaper, the drawn handle requiringno w broaching to'Vnisht-he interior. i n i What I claim! asfmyinvent-i-on, and'rdesire tosecure by-Letters Patent, is-` 1'. The combination of abar'previ'deiwitht'e'eth; on itsfiront edge andh'avinganupper ,f Y jawV of.v a. sleeve'extendingv continuously 'around said bar" and inclosinfgiy a space/be-4closed in saidspace andprovided Witha spin# dle C4 and a shoulder C5 anda rotating nut E bcarried on said spindle and bearing against saidshoulder and engaging the teeth on said bemand means f onholding saidjawfrom lonigitujdifnalmovement on said'sl'eeve, substantially asdescribed.

per jawfof a sleeve inclosing said bar having its rear edge in contactwith the rear edge of lo saidjbar and having itsfront edge flaring toform a space in front of said bar to receive the" tapering body-sectionof the lower jaw, a lower jaw provided with a tapering'body-sec gtioniitting the flaring spacefi-nl said sleeve, means. for attach/ing saidlower jaw to said sleeve-land means forimpart-ing a lon gi'tudinalmove-ment to Vsaid bar, substantially as. dei

- v scribed. By making the lower-j aw separate fr01n1thel sleeve B, I amable to employ soft anddnctile 3. In `a-vvfrench,the:combinationwith abar of'V the upper jaw, of a sleeve incl'osing said ibar and?` formingtheliandle.` of the wrench, said sleeve being drawn froma single pieceofrsheet meta-Landi having itsendclosedlto form closed; pocket for theendl of-` saidbar, saidy sleeve havingy itskufpper portion engaged @byan olsetrBi in its; front edge in orderto `ipr'mrid'e a flaring!spacefjor a separable lower `jaw andthre'v lower jaw'having a taperingtop ttingsai-d space and mean-s for attaching sa-id' jaw trosaidffsleeve, substantially as dejs'cri-bed; r

` 4. In la wrench, the handle B, consisti-nfg'of g an; integral sleevedrawn -flrom a single piece of; the'barand open at its upper end toreceilvea` separa-bici lower jaw, said sleeve havingfitsz rear edge B2'and the lower portion i of said bar andl having' an offset-B5v in` itsfront ifforj a. separable lower jawfcombin'ed with. the

bod-1y adaptedifto tit the flaring space in said isleeve;Asubstantially'as described.

L-of sheet metal and adapted toinclose4 the bar Sgof'thewrench, saidsleeve being closed,` atits a lowfer,` end' to form aclosedfpo'cketfortheend its; front edge B? parallelwith the edges of jawira.lowerfjaw'liavingthe Vloody.-spafce in# l.

2;.;The combination with a bar and an npv edge, whereby theuppe-.rportionY of said' sleeve' `gis increased in widthto formaflaringspace IOO , separablelbwer'jawprovided with atapering

